| 稻田CH4和N2O的排放及养萍和施肥的影响 |
| |
| 引用本文： | 陈冠雄,黄国宏,黄斌,吴杰,于克伟,徐慧,薛晓华,王正平.稻田CH4和N2O的排放及养萍和施肥的影响[J].生态学杂志,1995,6(4):378-382. |
| |
| 作者姓名： | 陈冠雄 黄国宏 黄斌 吴杰 于克伟 徐慧 薛晓华 王正平 |
| |
| 作者单位： | 1. 中国科学院沈阳应用生态研究所陆地生态系统痕量物质生态过程开放实验室, 沈阳 110015;
2. 美国路易斯安娜州立大学湿地生物地球化学研究所, LA70803 |
| |
| 基金项目： | 国家攀登计划;中国科学院陆地生态系统痕量物质土态过程开放实验室基金 |
| |
| 摘 要： | 用箱法对我国东北稻田CH4和N2O排放进行观测研究表明,东北稻田的CH4排放通量比南方稻田小,平均日排放通量和生长季节排放总量分别为0.07和7.4g·m-2.稻田淹水期几乎没有N2O的净排放,但在非淹水期内却有大量N2O排放(平均通量59μgN2O·m-2·h-1).稻田养萍和施肥明显促进CH4和N2O排放。稻田CH4和N2O排放之间存在消长关系。制定稻田温室气体减排技术措施时应充分注意这一关系。
|
| 关 键 词： | 稻田 CH4和N2O排放 养萍 施肥 |
| 收稿时间： | 1995-02-22 |
CH4 and N2O emission from a rice field and effect of Azolla and fertilitaion on them |
| |
| Chen Guanxiong,Huang Guohong,Huang Bin,Wu Jie,Yu Kewei,Xu Hui,Xue Xiaohua,Wang Zhengping.CH4 and N2O emission from a rice field and effect of Azolla and fertilitaion on them[J].Chinese Journal of Ecology,1995,6(4):378-382. |
| |
| Authors: | Chen Guanxiong Huang Guohong Huang Bin Wu Jie Yu Kewei Xu Hui Xue Xiaohua Wang Zhengping |
| |
| Institution: | 1. Laboratory of Ecological Process of Trace Substance in Terrestrial Ecosystem, Institute of Applied Ecology, Academia Sinica, Shenyang 110015;
2. Wetland Biogeochemistry Institute, Louisiana State University, Raton Rouge, LA70803, USA |
| |
| Abstract: | CH4 and N2O emission from a rice field in northeast China are monitored simultaneously and systematically by using chamber technique to estimate their fluxes from rice fields and to understand the relationship between these two gases emissions.The results show that CH4 emission from rice field in northeast China is much lower than that in south China, with a daily average emission of 0.079·m-2 and total seasonal emission of 7.4g·m-2.Rice fields almost do not emit or deposit N2O during flooding period, but substantially emit it (average flux 59 μgN2O.m-2·h-1) during non-flooding period.CH4 and N2O emissions are greatly enhanced by Azolla and fertilization.Atrade-off between CH4 and N2O emissions is observed, which should be considered when mitigation options for reducing greenhouse gas emission are proposed. |
| |
| Keywords: | Rice field CH4 and N2O emission Azolla Fertilization |
|
| 点击此处可从《生态学杂志》浏览原始摘要信息 |
| 点击此处可从《生态学杂志》下载免费的PDF全文 |
|
